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Finding the Fourth Proportional to 112,488.65, 168,736.02 and 49,276.25

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Solution

The fourth proportional to 112,488.65, 168,736.02 and 49,276.25 is: 73,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,488.65 : 168,736.02 = 49,276.25 : x
  2. Step 2: Convert to fraction form
    112,488.65/168,736.02 = 49,276.25/x
  3. Step 3: Cross multiply
    112,488.65x = 168,736.02 × 49,276.25
  4. Step 4: Simplify right side
    112,488.65x = 8,314,678,059.14
  5. Step 5: Solve for x
    x = 8,314,678,059.14/112,488.65
  6. Step 6: Final answer
    x = 73,915.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.